We’ve got a couple of television casting stories to share with you this weekend. First up, Deadline reports that Brothers & Sisters star Matthew Rhys has nabbed the male lead opposite Keri Russell in FX’s period drama pilot The Americans. The series centers on two KGB spies posing as a married American couple in the suburbs of Washington, DC in the 1980s. Complicating matters, the couple has two children who are unaware of their parents’ true identities and the husband grows an affinity for America’s values and way of life. This is one of the more interesting pilots in development this season, and while I’m unfamiliar with Rhys’ work, I’m eager to see how the series will play out. The project comes from Falling Skies’ Joe Weisberg and Justified showrunner Graham Yost.

Hit the jump for casting news regarding Lost star Yunjin Kim.

Additionally, Yunjin Kim (Sun!) is heading back to ABC. THR reports that Kim has been set to star in the summer series Mistresses. The soap is a remake of a British series with the same name and is described as “a provocative thrilling drama that finds four women with scandalous romantic lives caught in storms of excitement and self-discovery, secrecy and betrayal, and at the mercy of the complex relationships they’ve created.” Kim is poised to star as one of the four leads, opposite previously cast Rochelle Aytes and Jes Macallan. Gossip Girl scribe KJ Steinberg penned the script and ABC is eyeing a summer 2013 launch. The show was picked up straight to series, so no pilot pick-up is needed.